A 2000 kg demolition ball swings at the end of a 15 m cable on the arc of a vert

Question

A 2000 kg demolition ball swings at the end of a 15 m cable on the arc of a vertical circle. At the lowest point of the swing, the ball is moving at a speed of 6.8 m/s. Determine the tension in the cable. (Hint: The tension serves the same purpose as the normal force at point 1 in Figure 5.21.) A 2000 kg demolition ball swings at the end of a 15 m cable on the arc of a vertical circle. At the lowest point of the swing, the ball is moving at a speed of 6.8 m/s. Determine the tension in the cable. (Hint: The tension serves the same purpose as the normal force at point 1 in Figure 5.21.) A 2000 kg demolition ball swings at the end of a 15 m cable on the arc of a vertical circle. At the lowest point of the swing, the ball is moving at a speed of 6.8 m/s. Determine the tension in the cable. (Hint: The tension serves the same purpose as the normal force at point 1 in Figure 5.21.) A 2000 kg demolition ball swings at the end of a 15 m cable on the arc of a vertical circle. At the lowest point of the swing, the ball is moving at a speed of 6.8 m/s. Determine the tension in the cable. (Hint: The tension serves the same purpose as the normal force at point 1 in Figure 5.21.)

Explanation / Answer

Here ,

the tension in the cable is T

mass , m = 2000 Kg

length of wire , L = 15 m

at the bottom of the arc ,

T = m *g + m* v^2/L

T = 2000 * (9.8 + 6.8^2/15)

T = 25765 N

the tension in the cable is 25765 N

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